Yea, my svchost has been pissing me off lately, the computer will be running fine for a long time, then all of the sudden it starts lagging everything, I looked at processes and sure enough it was svchost, I figured by ended the task it might help, of course it did, then I lost sound

on the whole computer. So, I have to restart the comp for it to go away. It jumps from 0 to like 40-80 every like 30 seconds to a minute. Its really annoying. Does my schools firewall have anything to do with it? or is it something in XP?